Credit: The Associated Press

Mark Wiebe of the US, plays off the 3rd fairway, during the Senior Open Championship, at Royal Birkdale, Southport, Saturday July 27, 2013.

SOUTHPORT, England — Mark Wiebe of the United States beat Bernhard Langer on the fifth playoff hole Monday to win his first Senior British Open title.

Langer bogeyed his fifth attempt at the 18th hole on Royal Birkdale while Wiebe made par to claim the trophy. Storms delayed Sunday's fourth round and play was halted after two playoff holes because of darkness.